Bug 797670 - scheduled transaction editor can remain open when switch…

…ing file, which causes seg fault when later closed

gnucash/gnome/dialog-sx-editor.c

@@ -62,6 +62,7 @@
 #include "gnc-ui.h"
 #include "gnc-ui-util.h"
 #include "gnucash-sheet.h"
+#include "gnc-session.h"
 
 #include "gnc-split-reg.h"
 
@@ -1123,6 +1124,7 @@ gnc_ui_scheduled_xaction_editor_dialog_create (GtkWindow *parent,
     GtkBuilder *builder;
     GtkWidget *button;
     int i;
+    gint id;
     GList *dlgExists = NULL;
 
     static struct widgetSignalCallback
@@ -1208,10 +1210,12 @@ gnc_ui_scheduled_xaction_editor_dialog_create (GtkWindow *parent,
                             TRUE, TRUE, 0 );
     }
 
-    gnc_register_gui_component( DIALOG_SCHEDXACTION_EDITOR_CM_CLASS,
+    id = gnc_register_gui_component( DIALOG_SCHEDXACTION_EDITOR_CM_CLASS,
                                 NULL, /* no refresh handler */
                                 sxed_close_handler,
                                 sxed );
+    // This ensure this dialog is closed when the session is closed.
+    gnc_gui_component_set_session (id,gnc_get_current_session());
 
     g_signal_connect( sxed->dialog, "delete_event",
                       G_CALLBACK(sxed_delete_event), sxed );